Human Population Growth and Carrying Capacity
1. It took 1649 years for the world population to double, going from .25 billion people to .50
billion people. How long did it take for the population to double once again?
200 Years were needed to double
2. How long did it take for the population to double a second time? ___________ A third time?
It took 75 years for the population to double a second time and it took 51 years to double a third time.
3.Based on your graph, in what year will the population reach 8 billion? _____________
It will reach 8 billion at about 2024.
4.Based on your graph, how many years will it take for the population of 2004 to double?
It would take up to 47 years for the population in 2004 to double.
billion people. How long did it take for the population to double once again?
200 Years were needed to double
2. How long did it take for the population to double a second time? ___________ A third time?
It took 75 years for the population to double a second time and it took 51 years to double a third time.
3.Based on your graph, in what year will the population reach 8 billion? _____________
It will reach 8 billion at about 2024.
4.Based on your graph, how many years will it take for the population of 2004 to double?
It would take up to 47 years for the population in 2004 to double.
Analysis
1. What factors contributed to the world's overall population growth in the last 150 years?
2. Why does a population not level off during the same year it reaches zero population growth?
People will continue to have babies and the babies will also have babies and the parents will live on for a few decade.
3. If the carrying capacity of the earth was 9 billion people, when would this number be reached
(according to your graph)?
According to the graph, the population will be 9 billion at around 2035-2040.
4. What will happen when the human population exceeds the earth's carrying capacity?
It will lose population as resources are very limited per person.
1. What factors contributed to the world's overall population growth in the last 150 years?
- Agriculture revolution
- Advances in medicine, sanitation, and nutrition
2. Why does a population not level off during the same year it reaches zero population growth?
People will continue to have babies and the babies will also have babies and the parents will live on for a few decade.
3. If the carrying capacity of the earth was 9 billion people, when would this number be reached
(according to your graph)?
According to the graph, the population will be 9 billion at around 2035-2040.
4. What will happen when the human population exceeds the earth's carrying capacity?
It will lose population as resources are very limited per person.